Premenstrual
syndrome

A
condition
which
occurs
during
the
menstrual
cycle
and
occurs
shortly
(2-7
days)
before
the
period,
which
is
relieved
immediately
or or
up to
two
days
after
the
commencement
of
menstruation.
It is
characterized
by
lethargy,
depression,
irritability
and
sometimes
frank
aggression.
It is
thought
to be
in the
lower
continuum
of
conditions
which
affects
women
with
progesterone
deficiency
and
they
include
pre-eclampsia-eclampsia,
maternity
blues,
postnatal
depression
or
psychosis.